MedGen

Retinal arterial macroaneurysm is an autosomal recessive condition characterized by the bilateral appearance of 'beading' along the major retinal arterial trunks, with the subsequent formation of macroaneurysms. Affected individuals also have supravalvular pulmonic stenosis, often requiring surgical correction (summary by Abu-Safieh et al., 2011). [from OMIM]

A rare neoplastic lesion of the submucosal stroma, which can develop in any organ, often occurring in the lung, mesentery, omentum and the retroperitoneal region. It is histologically heterogenous, composed of spindle-shaped cells, myofibroblasts and inflammatory cells. It is usually benign, however local invasion, recurrence, malignant transformation with vascular invasion and metastases may occur. The presentation is nonspecific and depends on the organ involved. Some patients may present with paraneoplastic syndrome (fever, malaise, weight loss, thrombocytosis) or symptoms related to compression of adjacent organs, such as bowel obstruction. [from SNOMEDCT_US]

An infection caused by the human immunodeficiency virus. [from NCI]

A non-neoplastic or neoplastic disorder affecting the carotid artery. [from NCI]